ODD updated

Abstract

An update to Volker Grimm and colleagues' Overview, Design concepts and Details (ODD) protocol for documenting individual and agent based models (I/ABM) has recently been published in Ecological Modelling. This renames the 'State variables and scales' element to 'Entities, state variables and scales', and the 'Input' element to 'Input data', introduces two new Design concepts ('Basic principles' and 'Learning'), and renames another ('Fitness' is now generalised to 'Objectives'). The Design concepts element can now also be shortened such that it is not required to include any design concept that is irrelevant to the model, and expanded to include new design concepts more appropriate to the model being described. Other clarifications of intentions in the original protocol have been made. © JASSS.